const tabsInstance = (
  <Tabs defaultActiveKey={2} id="uncontrolled-tab-example">
    <Tab eventKey={1} title="Tab 1">Tab 1 content</Tab>
    <Tab eventKey={2} title="Tab 2">Tab 2 content</Tab>
    <Tab eventKey={3} title="Tab 3" disabled>Tab 3 content</Tab>
  </Tabs>
);

ReactDOM.render(tabsInstance, mountNode);
